Winding carrier for freshly spun threads of artificial silk



T. GRAUER March 16; 1937.

WINDING CARRIER FOR FRESHLY SPUN THREADS 0F ARTIFIGIAL SILK Filed Feb. 12, 1934 2 Sheets-Sheet 1 M g m.

T. GRAUER 2,074,217

WINDIN G CARRIER FOR FRESHLY SPUN THREADS OF ARTIFICIAL SILK March 16, 1937.,

2 Sheets-Sheet 2' Filed Feb. 12, 1934 Patented 1937 s P-AT E NT OFFICE 1 2.014211 .WINDING CARRIER FOR; FRESHLY sPU'N 'rmmms'on ARTIFICIAL SILK Theodor Grauefi Horn, Switzerland, assignor to rmals the firm Feldmiihle A.

Schoenfeld & (30 Switzerland Application This invention relates "to winding carriers for freshly spun threadsof artificial silk.

It is a known fact that the thread coil formed on a'winding carrier by means of freshly pun artificial silk-shrinks during the drying f owing the wet aftertreatment. 'In consequence thereof, the material of the inner layers of the thread coil which are prevented from contracting on the winding carrier to the same degree as the exterior layers presents different qualities as a textile fromthose of the outerflayers. f

In anendeavour to eliminate this drawback hitherto, "quite a number of special constructions of winding carriershave been proposed which permit* of" subsequently the circumference on w ch the thread is wound particularly/ by moving wardly the backs of certain individual supporting members of the winding carrier. Instead of using such specially constructed winding carriers, it has already been practised to remove the thread' coils from the winding carriers .for the aftertreatments. However, the sealing oflthese adjustable winding carv riersin aimanner appropriate for the subsequent aftertreatment of the threadcoils by means of" the various liquids to be used, so that these liquids pe ehate through the thread coil properly without being caus'ed'topass by the material ineffectively by pressure} or suction action, meets with extraordinary diflieulties.

- jhe winding carrier for freshly spusemm "-eia1. silk; according to thisinventio'n, theentire length between- Iat'erat circumferential 'margie nalportions and interconnecting supporting members serves for receiving the thread matee rial: which members-due to beingadjustable per mit,oof relailingthe thread coil formed which closes the joints between the-coil and the lateral circumferential-marginal pqrtionsin a manner appropriate tor-the wet aitertreatment whereby that said I members may be adapted for adjustradialdirecti h ofthe wind- W ment in the em or .ing carrier. J

to. be relaxed in such a manner that any liqui serving for 'the aftertreatment of the thread coil arecompelled to penetrate thro '.the thread coil exclusively, At the same circumferential marginalmortions of the winding carrier affordprotection "for thethrea'd coil against exterior influences and increase thesis bilityof the winding carrier. 0. I

reducing the length of Thua; Twith. the winding carrier according to invention sealed joints are automatically" provided fo'ron the termination of the winding operation; while the thread coil is. still aldap d.

' th' lateral Loeb A Rorschach,

February 12,1934, Serial No. 110,934 In February 18,,1933

(c1. ere-11a) In the accompanying drawings several con-- structional forms of the invention are illustrated by way'of example only, in which Figs; 1 and 2 illustrate a constructional form I of the invention in a fragmentary section and a fragmentary side elevation. respectively, (Figs. 3 and 4 show in a fragmentary transverse section and a corresponding plan view re spectively a detail of this construction,

Figs. 5 and ti'show another constructional form of the invention in an axial section and aifront elevation respectively, while Figs. 7 and 8 represent views of construction.

In the constructional form of the winding car-' 'riershow in Figs. 1 and 2 in a section and a side elevation. espectively, numerals I and 2 designate annular "e ,d discs or plates which are rigidly .Ydetailsof this end plates are embossed-at circumferentially spaced positions with guide slots 4, 5, in which the ends of thread s p 6 "commo'dated. 'e side walls of the embossments prevent circumferential movement of the rods 6; while the end walls thereof; limit the radial movement of .said rods within predetermined rting rods 6 are slidablyac limits and'the-bottoin walls prevent axial displace;-

inent thereof. The thread supporting rods are thus restricted in movement in every direction. Since the 'embossments are closed at the-bottoms,

the guiding and r triction of the thread supporting'rodsds pr ded' for without openings through the end" discs which would permit leak;

age. The thread supporting rods 6 are normally Y pressed outwardl'yin the guide .embossments toward their extreme outward li'znit by'a resilient I annular spring l'locatedmidway between the end discs within thethread supportingrods. This.

v springis heldin' this midwayposition byseveral pposite sides ofithefspring 1.

Figs. 3 and4, show on a larger scale a side J elevation and a plan view respectively'cf, adetail of'this, construction, the ends of the sp ringy annulus I being provided with hinge portions 9 and p 'lgl respectively; and a link I t serves for connecting- ,the hinge portion fiiwith aswing ble' controlfarm circumferential length, whereby the supporting members 6 assume their outermost positions on the winding carrier. 'By slightly rocking the control arm I! from the respectiveposi- 1 3, a collapsed condition 'ofthe winding carpairs ofstuds', 8 mounted on bolts 3 and engaging,

tio'n in the direction 'of the arrow shown in Eig.. 55';

1 H. In th yposition of the centre arm 12 shown -fi'n 'fult noes; the spi'ingyannulus is adjusted to 65 when the two levers riertis obtained by the springy annulus 1 being correspondingly contracted.

control arm l2 in the respective intermediate position. on subsequently swinging .the control arm i2 into the position shown in chain dotted lines in Fig. 3, the springy annulus l is moved into its maximum contracted condition, for con respondingly relaxing the thread coil.

The thread coil is formed in the receiving groove l3 of the winding carrier between the side walls I, 2 of this groove, which coil provides inconjunction with these side walls tightly sealed joints against the liquid of the after-treatment, asthese free from any slots. These lateral marginal portions of the winding carrier permit of turning the carrier by frictional engagement of their circumferential edges, without disturbing .theartiflcial silk thread material. After the texture of the silk is slightly loosened by the winding carrier being large size thread coils is ensured. Experience has shown that it is particularly advantageous to eifect the wet treatment on a rigid carrier and to drythe material on a'readily y'ielding supporting base, so that the thread in shrinking during the drying is'still opposed by acertain resistance acting from the innermost to the outermost layers of windings.

A winding carrier of this type is shown' in Figs. 5 and 6 in an=axial section and a front elevation respectively, whereas the Figs. 7 and 8 show details of this carrier;

The winding carrier as exemplified in these flgures isin the form of a spool havinga cylindrical barrel l5 which is provided at the ends with flanges I 6 and I1 respectively 'which adjoin the barrel with a steeper portion (and are gradually deflected outwardly to merge into a cylindrical shape. This form of the spool-has proven to be most advantageous.

Along the circumference of this spool longitudinal bars l8 are divided equal distances apart and provided at both of their ends with notches I 9 (Fig. 7).- These notches l9. accommodate springy rings 20 and 2| which are guided on their inner sides by the flanges l6 and I1 respectively and thus prevent the bars l8 from dropp g oil in the axial direction. The latter are inserted in slots 23 in. the flanges. I6 and I! (Fig. 6) and 'thus limited in their outward movements in the radial direction.

h 1 837 rings act in the manner of are tensioned, that is :0 and 2| are adapted to a locking device. The rings positively forced outwardly,

m are locked in the dead centre position. In the relative position of the parts of the locking device shown in Fig. 8 the springy ring is released and is thus .;adapted to resiliently resist 7 the pressureexerted on the longitudinal bars It by the thread The lever 25 is provided with an extension 21- which serves as a handle for controlling the locking device. It required, the barrel of the'spool vs mmctured.

Advantageously, means are provided for retaining the swingable joints between the side walls and the thread coil are 25 and 26 of the locking may be;

The spool is mounted on the ,spool holder of the spinning machine with the springs 20 and ,2i in tensioned condition. Thereupon the textile is applied thereto with the thread being 'cross wound in a suitable manner.

The silk coil as designated by 30 in Fig. 5 covers the longitudinal bars [8, the flanges l6 and I1 and the slots 23 situated inwardly on the latter completely. The coil can be wound'to any desired thickness, as the spool, owing to its particular construction, is adapted'to equalize any differences in tensioning between the inner and outer layers. When the spool is dolled from the spinning machine and placed in position in the washing and aftertreatingtubs, it can be readily subjected to a vacuum or to pressure as it is cornpletely closed by the silk coil owing to its particular construction.

. After the wet treatment, as washing, desulphurizing, bleaching, shading oil to a desired hue and so forth, the spool is collapsed by releasing the locking mechanism as describedin connection with Fig. 8 and carefully inserted lnthe drying oven. Alternatively, the spool is previously subjected to centrifugal action. Due to the fact that the springy rings 20 and 2! exert at all times 7 a gentle pressure on the thread coil from within, the layers of windings are retained in their initial positions and thus kept from tangling.

The drying is-effected under equal conditions for the inner as well as the outer layers of windings of the'thread. The innermost and the exfltreme outermost layers dry out first and thus begin to shrink prematurely. While the outer layers are resistedby the bulk of the layers of the coil, the inner layers are resisted in a similar manner by the released bars l8.

v v The trend is to keep the rslstanceopposed by the resilient bars during the shrinking within the limits of the reaction exerted on the outermost layers by the inner layers.

The artificial sflk wound on thespool according to the invention and subjected to the aftertreatment while still on the spool is of surprisingly uniform quality throughout the coil. The unwinding of the silk from this spool canbe carried out free from disturbances; Advantageously the silk is immediately twisted preferably on ring doubling machines rather ,than on balloon donbling machines. r I' do not limit myself to the Particular size, shape, number or arrangement of parts'as shown and described, all of which may be varied without goingbeyond the scope shown, described and claimed. 7 I

1. In a winding carrier for freshly ,spun artificial silk thread, in combination, lateral marginal portions of the carrier disposed circumferentially thereof, supporting members for the thread material intercalated between said marginal por-- tions in circumferentlally spaced relationship and providing inconjunction with said portions a radially adjustable receiving groove to be substantlally filled out with'said material, radially directed guides providedo'n said marginal portions for saidsupporting members, a springy adjustable annulus cooperating-with said supporting members for shifting the same radially outwardly along said guides, and control means for contracting said annulus for relaxing the woundon material in said groove.

2. In a winding carrier for freshly spun arti- 1flcial silk thread, in combination a rigid cylin-v drlcal barrel, radiallyoutwardly-ilared marginal of my invention as but'interiorly of said marginal end portions for pressing said supporting members radially outwardly along said guide slots, and control means for said abutments for maintaining the same in their expanded relatively rigid condition of winding or in their relieved resilient condition respectively for relaxing the wound-on material in said groove.

3. A winding carrier for freshly'spun'artiflcial end portions of said barrel having radially directed guide slots in circumferentially spaced I relationship, supporting members for the thread silk threads having supporting members, lateral peripheral margins, the supporting members connecting the lateral peripheral margins forming therewith a peripheral channel for receiving the thread, said lateral peripheral margins havingguides in which said supporting members lie and in which they are slidable, to reduce the diameter of the winding channel at any time -for the relaxation of the thread winding, means for limiting the radial sliding of the supporting members in said guides, an open resilient ring.

for supporting the supporting members, and

- means including a pivoted control arm connected with the ends of said ring for expanding or contracting and holding said resilient member relatively unyieldin'gly to serve as a relatively rigid support for said supporting members.

THEODOR GRAUER. 

